This is a plugin for generating moodle books from pictures
Upload the zipped genbook folder on the 'install plugin' page of moodle. Continue trough the installation process.
Click the 'generate book' option in the settings navigation (gear) of the course you want to generate the book in. Then on the page choose the section of the book as well as its name. Next drag all images the book shall include as chapters into the file manager. Before clicking 'Create a book' upload the configuration file. This must have the format "[name of file without file ending]_[name of the chapter]" for each chapter in a separate line. If everything is fine, you should now see the newly created book.